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Effective Diffusivities and Pore-Transport Characteristics of Washcoated Monolith for Automotive Catalytic Converter
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SYSNO ASEP 0028916 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Effective Diffusivities and Pore-Transport Characteristics of Washcoated Monolith for Automotive Catalytic Converter Title Efektivní difuzivity a transportní charakteristiky monolitických automobilových konvertorů s nanesenou vrstvou katalyzátoru Author(s) Starý, T. (CZ)
Šolcová, Olga (UCHP-M) RID, ORCID, SAI
Schneider, Petr (UCHP-M) RID
Marek, M. (CZ)
Schejbal, M. (CZ)Source Title Sborník 1. - Praha : Procesní inženýrství, 2005 / Bočková J. ; Halfar R. - ISBN 80-86059-42-1 Pages s. 125 Number of pages 20 KB s. Publication form CD-ROM - CD-ROM Action Konference chemického a procesního inženýrství CHISA 2005 /52./ Event date 17.10.2005-20.10.2005 VEvent location Srní, Šumava Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords single pellet-string column ; effective diffusivity ; monolith catalyst Subject RIV CF - Physical ; Theoretical Chemistry CEZ AV0Z40720504 - UCHP-M (2005-2011) Annotation The effective diffusivity in the pores of catalytic monolith was studied in single pellet-string columns by chromatographic technique. The column was packed with small monolith particles. Dispersion due to extra column effects was eliminated via convolution of responses for two column lenghts. The measurements were done for both cordierite support with alumina based washcoat. The effective diffusion coefficients for two tracer-carrier pairs were evaluated by fitting column response (chromatographic) peaks in time domain. Mean transport parameters were evaluated for both types of porous particles. Obtained mean transport pore radii are in reasonable agreement with pore size distribution from mercury porosimetry. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2006
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